#3F449E#3F449E

#3F449E is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.5% C 0.144 H 276.2°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#3F449E
RGB	rgb(63, 68, 158)
HSL	hsl(237, 43%, 43%)
HSV	hsv(237, 60%, 62%)
CMYK	cmyk(60.1%, 57%, 0%, 38%)
CIE-LAB	lab(33.26, 25.94, -49.78)
CIE-LCH	lch(33.26, 56.14, 297.52°)
OKLab	oklab(43.5% 0.0156 -0.1428)
OKLCH	oklch(43.5% 0.144 276.2)
XYZ	xyz(10.2866, 7.6589, 33.2774)
Luminance	0.0766 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F449E #9E993F

analogous

#3F739E #3F449E #693F9E

triadic

#3F449E #9E3F44 #449E3F

tetradic

#3F449E #9E3F73 #9E993F #3F9E69

square

#3F449E #9E3F73 #9E993F #3F9E69

split-complementary

#3F449E #9E693F #739E3F

monochromatic

#1C1E46 #2E3172 #3F449E #5C61BE #888CD0

Accessibility & contrast

On white

8.29

#3F449E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#3F449E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F449E

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F449E	#FFFFFF	#000000	##FFFFFF
##3F449E	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052A1

Deuteranopia (green-blind)

#004A9C

Tritanopia (blue-blind)

#00596A

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3f449e;
/* rgb */ color: rgb(63, 68, 158);
/* oklch */ color: oklch(43.5% 0.144 276.2);

Tailwind

colors: {
  custom: {
    50: '#7d78bb',
    500: '#3f449e',
    950: '#000000',
  },
}

SCSS

$custom: #3f449e;
$custom-light: #7d78bb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f449e",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 158
  },
  "hsl": {
    "h": 236.842,
    "s": 42.986,
    "l": 43.333
  },
  "oklch": {
    "l": 0.43496,
    "c": 0.14369,
    "h": 276.2
  },
  "luminance": 0.0766
}

Semantic roles & 50–950 ramp

primary

#3F449E

secondary

#BAB77F

accent

#CC55D3

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #3F449E

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →